You visited us 1 times! Enjoying our articles? Unlock Full Access!

First Order Reaction

What is the c...

Question

What is the cell entropy change (in J K") of the following cell
The EMF of the cell is found to be 0.045 V at 298 K and temperature coefficient is :
$3.4 \times 10^{- 4} V K^{- 1}$
(Given: $K_{a (C H_{3} C O O H)} = 10^{- 5} M)$

$P t (s) ∣ ∣ ∣ \begin{matrix} H_{2} (g) p = 1 a t m \end{matrix} ∣ ∣ ∣ \begin{matrix} C H_{3} C O O H, H C l 0.1 M \end{matrix} ∣ ∣ ∣ ∣ ∣ ∣ \begin{matrix} K C l (a q) 0.1 M \end{matrix} ∣ ∣ ∣ \begin{matrix} H g_{2} C l_{2} (s) \end{matrix} ∣ ∣ ∣ H g$

60

No worries! We‘ve got your back. Try BYJU‘S free classes today!

65.2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

69.2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

63.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $65.2$
As we know,
$Δ S = n F {(\frac{d E_{c e l l}}{d T})}_{P} = 2 \times 96500 \times 3.4 \times 10^{- 4}$
$= 65.2 J K^{- 1}$

Suggest Corrections

Similar questions

P t (x) | H_{2} (g) | C H_{3} C O O H, H C l | | K C l (a q) | H g_{2} C l_{2} (s) | H g

3.4 \times 10^{- 4} V K^{- 1}

K_{a (C H_{3} C O O H)} = 10^{- 5} M

P t (s) | H_{2} (g, 1 a t m) | C H_{3} C O O H, H C l | | K C l (a q) | H g_{2} C l_{2} (s) | H g

0.0045 V

3.4 \times 10^{- 4} V K^{- 1}

A g | A g C l | | K C l (a q .) | H_{2} C l_{2} | H g

3.38 \times 10^{- 4} V K^{- 1}

P b (s) + {H g C l}_{2} (a q) ⟶ {P b C l}_{2} (a q) + H g (l)

{(\frac{d E}{d T})}_{p} = 1.5 * 10^{- 4} V / K

F e | F e^{2 +} (a q) | | C d^{2 +} (a q) | C d

- 1.25 \times 10^{- 4} V K^{- 1}

Join BYJU'S Learning Program